Raspberry plant named &#39;ps-3218&#39;

ABSTRACT

This invention relates to a new and distinct everbearing variety of raspberry plant named ‘PS-3218’. The new variety is primarily adapted to the growing conditions of the central coast of California and is characterized by the following: medium to small sized fruit of light red coloration. Fruit is of consistent conic shape, high gloss, very easy release from receptacle and poor flavor. Foliage is strongly concave, medium green; possessing weak rugosity and equal 3-5 foliates. Primocanes have a medium strength waxy coat, sparse thorn density and are absent of any anthocyanin coloration.

LATIN NAME OF THE GENUS AND SPECIES OF THE PLANT CLAMED

Rubus idaeus

VARIETY DENOMINATION

‘PS-3218’

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct fall bearing raspberry variety designated as ‘PS-3218’. This new variety is a result of a controlled cross made in 2002 between raspberry variety ‘PS-1049’ (patented, U.S. Plant Pat. No. 10,142) and raspberry variety ‘PS-1764’ (patented, U.S. Plant Pat. No. 15,439) in an ongoing breeding program. The variety is botanically known as Rubus idaeus.

The seedling resulting from the aforementioned cross was asexually propagated by dormant canes in Santa Cruz County, Calif. and was subsequently selected by the inventor from a controlled breeding plot in Watsonville, Calif. in 2004. After its selection, the new variety was further asexually propagated by dormant canes, roots and non-dormant root shoot cuttings in Santa Cruz County, Calif., San Joaquin County, Calif. and Siskiyou County, Calif. The new variety was then extensively tested over the next several years in fruiting fields in Santa Cruz County, Calif. This propagation has demonstrated that the combination of traits disclosed herein as characterizing the new variety are fixed and remain true to type through successive generations of asexual reproduction.

BRIEF SUMMARY OF THE INVENTION

‘PS-3218’ is primarily adapted to the climate and growing conditions of the central coast of California. This region provides the necessary year-round temperatures required for it to produce and maintain a strong vigorous plant and to remain in fruit production from

July through December on primocanes and in the ensuing year from May through July on the floricanes. The following traits have been repeatedly observed and are determined to be unique characteristics of ‘PS-3218’, which in combination distinguish this raspberry plant as a new and distinct variety:

1. Small fruit size

2. High fruit yield

3. Light red fruit color

4. Medium primocane glaucosity

5. Light brown floricane color (true)

The raspberry variety that is believed to be most closely related to the new raspberry variety ‘PS-3218’ is the raspberry variety ‘GRANDEUR’ (patented, U.S. Plant Pat. No. 20,459). In comparison to the similar raspberry variety ‘GRANDEUR’, ‘PS-3218’ differs by the following combination of characteristics described in Table 1:

TABLE 1 ‘GRANDEUR’ Characteristic ‘PS-3218’ (U.S. PP20,459) Primocane waxy coat Medium Absent to very weak (glaucosity) Predominate number of Equal 3-5 Always 3 leaflets Leaf shape (cross section) Strongly concave Flat to slightly convex Rugosity Weak Strong Color mature fruit RHS 34A RHS 42A Light red Medium red Primocane fruit weight (g) 3.5 3.9 Floricane color RHS 161A RHS 164A Greyed-yellow group Greyed-orange group

‘PS-3218’ differs from its parents, ‘PS-1764’ and ‘PS-1049’ by the following combination of characteristics described in Table 2:

TABLE 2 ‘PS-1764’ ‘PS-1049’ Characteristic ‘PS-3218’ (U.S. PP15,439) (U.S. PP10,142) Productivity High Medium Medium Glossiness (fruit) High High Medium Adherence of receptacle Very weak Medium Weak Primocane time of fruiting Medium Medium to late Medium Fruit size Small Medium Small Flavor Poor Excellent Poor

For identification, a series of molecular markers have been determined for this new variety.

BRIEF DESCRIPTIONS OF THE DRAWINGS

The accompanying color photographs illustrate the overall appearance of typical specimens of the new raspberry variety, ‘PS-3218’ at various stages of development as true as reasonably possible with color reproductions of this type. Color in the photographs may differ slightly from the color value cited in the detailed botanical description which accurately describes the color of ‘PS-3218’. The depicted plant and plant parts of the new raspberry variety ‘PS-3218’ were taken in Watsonville, Calif. and are approximately 2 to 16 months old:

FIG. 1 shows typical primocane foliage and fruit color; foliate and rugosity characteristics of ‘PS-3218’ taken in the month of July 2014;

FIG. 2 shows typical coloration of apical growing tip during early primocane rapid growth of ‘PS-3218’ taken in the month of May 2013;

FIG. 3 shows typical harvested fruit of ‘PS-3218’ taken in the month of August 2013;

FIG. 4 shows typical dormant cane color characteristics of ‘PS-3218’ taken in the month of January 2013.

DETAILED BOTANICAL DESCRIPTION

‘PS-3218’ has not been observed under all possible environmental conditions. The characteristics of the new variety may vary in detail, depending upon variations in environmental factors, including weather (temperature, humidity and light intensity), day length, soil type, and location.

The aforementioned photographs, together with the following description of the new raspberry variety ‘PS-3218’, unless otherwise noted, are based upon observations taken during the 2013-2014 growing season in Watsonville, Calif. Primocane measurements and ratings were taken from plants of ‘PS-3218’ dug from a nursery located in Siskiyou County, Calif. during the middle of October 2012 and planted approximately 3 to 4 weeks later in Watsonville, Calif. The approximate age of the observed primocane plants is 7 to 8 months. Floricane measurements and ratings were taken from the same planting of ‘PS-3218’ at an approximate age of 16 to 18 months. Yield observations and fruit quality characteristics are averaged from five years of data collected from the 2009 through 2014 production seasons. Flower measurements and characteristics are from secondary flowers unless otherwise noted. Fruit characteristics and measurements are from secondary fruit unless otherwise noted. Foliage characteristics and measurements are from 3-foliate foliage unless otherwise noted.

Color terminology where noted follows the R.H.S. Colour Chart Fifth Edition, The Royal Horticultural Society, London, United Kingdom (1966).

The following tables 3-7 describe fruit, plant, foliage, flower and pest/disease characteristics of the new raspberry ‘PS-3218’ in comparison to the similar raspberry varieties ‘GRANDEUR’ (patented, U.S. Plant Pat. No. 20,459).

TABLE 3 FRUIT CHARACTERISTICS ‘GRANDEUR’ Characteristic ‘PS-3218’ (U.S. PP20,459) Color mature fruit RHS 34A RHS 42A Light red Medium red Color achenes RHS 159A RHS 159A Orange-white group Orange-white group Fruit length (mm) 21.95 22.91 Fruit width (mm) 18.90 20.12 Length/Width ratio 1.16 1.14 Longer than broad Longer than broad Seed weight (mg) 1.57 1.75 Druplets per berry 101 93 Weight of single drupe 0.037 0.043 (g/drupe) Relative size of drupes Small Medium Fruit size Small Medium Predominant shape Conical Conical Evenness of color Even Even Glossiness Medium strong Medium Adherence of receptacle Very weak Weak Firmness of flesh Firm Very firm Firmness of skin Medium Very firm Soluble Solids (% brix) 8.9 10.5 Flavor Poor Good

TABLE 4 PLANT CHARACTERISTICS ‘GRANDEUR’ Characteristic ‘PS-3218’ (U.S. PP20,459) General: Habit Upright Upright Size Medium Medium Productivity High High Self-fruitfulness Yes Yes Type of bearing Everbearing Everbearing Primocane: Color (true) RHS 145A RHS 145B Yellow-green group Yellow-green group Length (cm) 170.2 143.6 Basal diameter (mm) 14.51 21.80 Diameter central 1/3 (mm) 10.48 12.55 Lateral length at central 1/3 (cm) 57.6 43.6 No. fruiting laterals per cane 17.0 17.4 Internode length at central 51.09 48.84 1/3 (mm) Anthocyanin coloration n/a RHS 59B Absent Weak Pubescence Absent Absent Length of vegetative bud (mm) 8.74 11.01 Strength of waxy coat Medium Absent to very weak (glaucosity) Time of flowering Medium Medium Time of fruiting Medium Medium Length of fruiting season Long Long % of total yield 51% 50% Flowering period Late June to Late June to Late November Late November Harvest period Late July to Late July to Late December Late December Primocane fruit weight (g) 3.5 3.9 Primocane yield (g/plant) 2,904 2,662 Young Shoots: Number Medium Medium Anthocyanin presence Present Present Anthocyanin coloration RHS 59B RHS 179A Red-purple group Greyed-red group Anthocyanin intensity Medium Medium Thorns: Thorn coloration RHS 180A RHS 180C Greyed-red group Greyed-red group Thorn length at central 1/3 (mm) 1.12 0.76 Thom base at central 1/3 (mm) 1.51 1.53 Thom presence Present Present Thom density per cm at 1.60 3.38 central 1/3 Sparse Medium Thom texture Rigid Rigid Attitude of the tip Horizontal Horizontal Floricane: Color (true) RHS 161A RHS 164A Greyed-yellow group Greyed-orange group Length (cm) 131.6 119.8 Fruiting lateral attitude Erect Erect Time bud burst Medium Medium Time of flowering Medium Medium Time of fruiting Medium Medium Length of fruiting season Medium to long Medium to long % of total yield 49% 50% Flowering period Late April to Late April to Late June Late June Harvest period Late May to Late May to Late July Late July Floricane fruit weight (g) 3.3 3.7 Floricane yield (g/plant) 2,768 2,680

TABLE 5 FOLIAGE CHARACTERISTICS ‘GRANDEUR’ ‘PS-3218’ (U.S. PP20,459) Characteristic (3 Foliate) (3 Foliate) General: Color of upper surface RHS 137A RHS N137A Green group Green group Color of lower surface RHS 1908 RHS 190B Greyed-green group Greyed-green group Shape in cross section Strongly concave Flat to slightly convex Arrangement Compound Compound Relief between veins Weak Strong (rugosity) Glossiness Weak Weak Number of leaflets/leaf Equal 3-5 Always 3 Terminal Leaflet: Length (mm) 147.9 127.5 Width (mm) 76.4 91.6 Length/Width Ratio 1.9 1.4 Much longer than broad Longer than broad Size Medium Medium to large Shape Ovate Cordate Shape of base Acute Cordate Shape of tip Acuminate Acuminate Margins Biserrate Biserrate Lateral Leaflet: Length (mm) 117.0 105.5 Width (mm) 52.5 65.1 Length/Width Ratio 2.2 1.6 Much longer than broad Longer than broad Rachis length (mm) 35.1 36.2 Orientation Opposite Opposite Arrangement Compound Compound Shape Ovate Ovate Overlapping Free Touching Shape of the base Acute Oblique rounded Shape of the tip Acuminate Acuminate Margins Biserrate Biserrate Petiole: Length (mm) 67.08 59.00 Width (mm) 2.85 3.99 Thorn presence Yes Yes Thorn orientation Erect Erect Anthocyanin coloration RHS 186A RHS 184C of upper surface Greyed-purple group Greyed-purple group Anthocyanin intensity Absent to very weak Weak of upper surface Stipule length (mm) 6.46 10.23 Stipule orientation Erect Erect to horizontal

TABLE 6 FLOWER CHARACTERISTICS ‘GRANDEUR’ Characteristic ‘PS-3218’ (U.S. PP20,459) Petal color 155C 155C White group White group Flower diameter (mm) 19.11 22.55 Petal Length (mm) 6.11 6.42 Petal width (mm) 2.77 3.11 Petal length/width ratio 2.20 2.06 Much longer Much longer than broad than broad No. petals/flower 5.6 5.2 No. sepals/flower 5.6 5.2 Relative number of pedicel thorns Few Medium Peduncle anthocyanin presence Present Present Peduncle anthocyanin coloration RHS 184C RHS 183D Greyed-purple group Greyed-purple group Peduncle anthocyanin intensity Absent to very weak Medium

TABLE 7 PEST AND DISEASE REACTIONS ‘GRANDEUR’ Characteristic ‘PS-3218’ (U.S. PP20,459) Two spotted drosophila Susceptible Susceptible Two spotted spider mite Highly susceptible Susceptible Grey fruit mold Susceptible Susceptible Powdery mildew Moderately susceptible Moderately susceptible Yellow rust Moderately resistant Moderately susceptible 

We claim:
 1. A new and distinct variety of raspberry plant named ‘PS-3218’, as herein described and illustrated by the characteristics set forth above. 